Home / Security / Advisories / NTAP-20180926-0003

NTAP-20180926-0003 — CVE-2018-5740 ISC Bind Vulnerability in NetApp Products

Published 2018-09-26 · Updated 2020-09-01 · Status: Final · Exploitation: Public · Severity: HIGH 7.5 · ONTAP affected: Yes

Official advisory: NTAP-20180926-0003 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: ONTAP · Cloud Backup / AltaVault / SteelStore | ONTAP-relevant | highest CVSS: 7.5

CVEs in this advisory

CVE-2018-5740 — HIGH · CVSS 7.5 · site index

What the CVE records say

CVE-2018-5740 — "deny-answer-aliases" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service(DoS).

Affected products

Data ONTAP Edge
NetApp SteelStore Cloud Integrated Storage

References

https://kb.isc.org/article/AA-01639/ ↗

What to do

Check the affected products listed above against the official advisory's affected-versions table — that is where the exact ONTAP 9 release, ONTAP tool, or management product versions are named.
If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
Harden in parallel: security hardening baseline and ransomware protection on ONTAP.